Use -s option to 'ar' to make sure symbols are repacked correctly

Bug: 139269926
Test: Build gamesdk
Change-Id: I856eaab478f48bcd994adb8aac3fed3c6c695370
diff --git a/build.gradle b/build.gradle
index f07c01d..f66c9e9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -284,7 +284,7 @@
     inArs.each {
         cmd <<= /ar -x $it &&/
     }
-    cmd <<= /ar -qc $outAr *.o && rm *.o && popd/
+    cmd <<= /ar -rcs $outAr *.o && rm *.o && popd/
     ['/bin/bash', '-c', cmd.toString()].execute().waitFor()
 }